CNAME flattening
CNAME
flattening speeds up CNAME
resolution and allows you to use a CNAME
record at your root/apex domain (example.com
).
How it works
With CNAME
flattening, Cloudflare finds the IP address that a CNAME
points to. This process could involve a single lookup or multiple (if your CNAME
points to another CNAME
). Cloudflare then returns the final IP address instead of a CNAME
record, helping DNS queries resolve up to 30% faster.
For more details on the mechanics of CNAME
flattening, review the CNAME flattening diagram and refer to the Cloudflare blog post.